cos 90 - sin 45
Pleeeeeeeeease

Answers

Answer 1

Answer:

-1.29897714066

Step-by-step explanation:

Answer 2

Answer:

see explanation

Step-by-step explanation:

cos90° - sin45°

= 0 - [tex]\frac{\sqrt{2} }{2}[/tex] ( exact value of sin45° )

= - [tex]\frac{\sqrt{2} }{2}[/tex]

≈ - 0.707 ( to 3 dec. places )


Related Questions

You spin a spinner that is equally divided into 7 parts, and then you spin it again. 1 part is red, 2 parts are white, 3 parts are yellow and 1 part is black.
What is the probability of the spinner stopping on a white section on the first spin and then a red section on the second spin?

Answers

Answer:

[tex] \frac{2}{7} \: and \: \frac{1}{7} [/tex]

Look at the picture, for the problem ​

Answers

Step-by-step explanation:

frist ordering the data

4,4,4,5,6,7,7,7,10,11 then

3. the most common ages are 4& 7

4. the range = high - low so 11 - 4 =7

5.the median is Nth/2 + Nth/2 +1 then

10th/2 +10th/2 +1

(5th +6th)/2 = median

(6 +7)/2 =13/2 = 6.5 is the median of children

What is 6^4written in expanded form?
4+4+4+4+4+4
4.4.4.4.4.4
6+6+6+6
6.6.6.6

Answers

Answer:

6 · 6 · 6 · 6

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

This is because the 4 is an exponent or a power.

This makes the 6 in this case multiply itself 4 times.

HOPE THIS HELPS

Which of the following equations could be solved to determine the length of QR?

Answers

Answer: D

Step-by-step explanation:

What’s the answer please help me no links at all if you do I will report

Answers

Answer: 78

Step-by-step explanation:

Line m passes through the points (-4.3) and (4.7). What is the slope of the line that is parallel to line m?

Answers

Step-by-step explanation:

slope equals to change in y/change in x

slope=7-3/4+4

=4/8=1/2

Plzzz guys help me ;( F(x)-mx+ b, f(-2)=3 and f(4)=1 , what is the value of m and b

Answers

Answer:

Plzzz guys help me ;( F(x)-mx+ b, f(-2)=3 and f(4)=1 , what is the value of m and

Brie needs cups of flour for her recipe. Which amount is enough for Brie's recipe?

Answers

Answer:

2[tex]\frac{1}{2}[/tex] cups

Step-by-step explanation:

Hi there,

When dealing with these types of problems, it is highly recommended to set the same denominators for the fractions you are dealing with. In this problem, we can see that 2[tex]\frac{1}{2}[/tex] is equivalent to [tex]\frac{5}{2}[/tex]; making this the correct answer choice.

Hope this explanation helps.

Cheers.

i need help asap please and thank you

Answers

Answer:

113

Step-by-step explanation:

First we need to find theother 2 angles of the triangle.

We are given that the top angle is 60°

We know that the angles of a triangle add up to 180°

To find the bottom left angle of the triangle...

We can see that it is alternate exterior angles so they will equal.

To find the third angle of the triangle...

180 - 60 (given angle) -53 (alternate exterior angle) = 67°

Now we know that the bottom right angle inside the triangle is 67°.

To find x...

subtract 67 from 180 because the like is a combination of x and the 67° angle we just found. (a straight line angle = 180°)

180 - 67 = 113

1 pts
So
Sales
SE
According to
the data given, sza
what is the
sales amount
when the
temperature is
18 degrees C?
Temperature

Answers

Shfhdjdjsxjzkzndmdkxmdns

least common denominator for these two rational expressions, 3/y and
1/7y

Answers

Answer:

least common denominator = 7y

Step-by-step explanation:

3/y = 21/7y

1/7y and 21/7y have a least common denominator of 7y.

Identify each pair of angles as corresponding, alternate interior, alternate exterior, or a consecutive interior and solve for X

Answers

Answer:

those are corresponding angles

Step-by-step explanation:

6x=5x+10

-5x on both sides of the equal sign

x=10

Can someone help me? Becks?

Answers

Answer:

Perimeter = 72

Step-by-step explanation:

Notice that the adjacent (next to) lengths by each corner are equal in length.

This occurs when the quadrilateral is circumscribed.

Since 4.2 is adjacent to the length which makes up the total side 20.

20 – 4.2 = 15.8.

And 15.8 + 4.2 = 20.

(7 + 9) + (9 + 4.2) + (4.2 + 15.8) + (15.8 + 7) =

(16) + (13.2) + (20) + (22.8) =

(16 + 20) + (13.2 + 22.8) =

36 + 36 =

72

If the logarithm of 5832 is 6, what is the base?
[tex] logx(5832) = 6[/tex]

Answers

Answer:

The base is 4.2426.

Step-by-step explanation:

Logarithm definition:

Suppose we have that:

[tex]\log_{a}{b} = c[/tex]

It means that;

[tex]b = a^c[/tex]

In this question:

[tex]\log_{x}{(5832)} = 6[/tex]

It means that:

[tex]x^6 = 5832[/tex]

[tex]x = \sqrt[6]{5832}[/tex]

[tex]x = (5832)^{\frac{1}{6}}[/tex]

[tex]x = 4.2626[/tex]

The base is 4.2426.

THE QUESTION IS IN THE PHOTO. HELP​

Answers

Answer:

The constant is 3

Step-by-step explanation:

To the answer, you divide y/x.

15/5 = 3

9/3 = 3

6/2 = 3

1.5/ 0.5 = 3

Each day you do homework for m minutes and watch tv for 30 minutes. which expression can you use to find out how many minutes you do both activities in 5 days. explain you reasoning.

a. 5m+30
b. 5(m+6)
c. 5(m+30)
d. m(5+30)

Answers

Answer is c for sure 100%

Your round-trip drive to work is 4 1. miles. How many miles do you drive to and from
work in 3 days?
7 3/10
12 3/10
12 9/10
8 3/5

Answers

last one okay bye have a nice day

If the principal is $200 and the interest rate is 4 percent, what is the simple interest earned in one year?
А.$8
B.$50
C.$800

Answers

Answer:

A

Step-by-step explanation:

Are these 4 questions correct? If anything is wrong, let me know and tell me what is correct.

Answers

Answer:

they're all correct

Step-by-step explanation:

I think, if it's wrong I'm very sorry, but I'm fairly sure they're right

hope this helps:)

Create an inequality to describe the possible values for the total area, A, in square feet of your green section.

Answers

The Area of triangle represented using inequality is A ≤  48.67 [tex]ft^{2}[/tex].

What is Area of triangle?

The area of a triangle is half the product of its base and height.

i.e., Area of triangle= [tex]\frac{1}{2} * b* h[/tex]

Given, b= 6.2 feet and h= 15.7 feet

Area of triangle= [tex]\frac{1}{2} * b* h[/tex]

                          = 0.5 x 6.2 x 15.7

                          = 48.67 [tex]ft^{2}[/tex]

The inequality will be: Area of triangle, A≤  48.67 [tex]ft^{2}[/tex]

learn more about Area of triangle here:

https://brainly.com/question/19305981?

#SPJ2

-12.3 + 7v = 10.1 solve for V

Answers

Answer:

v=3.2

Step-by-step explanation:

Let's solve your equation step-by-step.

−12.3+7v=10.1

Step 1: Simplify both sides of the equation.

7v−12.3=10.1

Step 2: Add 12.3 to both sides.

7v−12.3+12.3=10.1+12.3

7v=22.4

Step 3: Divide both sides by 7.

7v /7 = 22.4 /7

v=3.2

brainliest?

6 dividido entre 3,978

Answers

Answer:

0.0015082956 es la respuesta pero el valor aproximado sería ≈ 0.0015083

Anyone know this? Answer for cookie!

Answers

Answer:

no solution

Step-by-step explanation:

the value of 3x+2y can't be two different things at once

Answer: no solutions

Step-by-step explanation:

when the two equations have the same x and y values but a different y intercept they can not have any solutions because they are parallel

Each interior angle of a regular nonagon has a measure 13x+10°. What is x?

Answers

Answer:

Step-by-step explanation:

A nonagon has nine sides.

The sum of exterior angles = 360°, so each exterior angle is 360°/9 = 40°.

Each interior angle = 180°-exterior angle = 140°.

13x + 10° = 140°

x = 10°

need help with math its a struggle

Answers

Answer:

(1,4)

(0,0)

Step-by-step explanation:

smarts

Answer:

1,4

0,0

Step-by-step explanation:

whatever is in the purple is valid and the closed line is inclusive so anything on it counts but the dotted line is exclusive

HELP ASAP NO LINKS PLEASE HELP​

Answers

the answer is D !!!!!!

It takes Bethany 9 hours to proof a chapter of Hawkes Learning Systems' College Algebra book and it takes Nina 5 hours. How long would it take them working together

Answers

Hello!

Here we could use something called the work equation.

If [tex]x[/tex] is considered proofing a chapter of the book, we can set up an equation such as, [tex]\frac{1}{9}+\frac{1}{5}=\frac{1}{x}[/tex].

Then, all we do is solve for it.

[tex]\frac{1}{9}+\frac{1}{5}=\frac{1}{x}[/tex]

[tex]5x+9x=45[/tex]

[tex]14x=45[/tex]

[tex]x=\frac{45}{14}[/tex]

So working together, it would take them [tex]\frac{45}{14}[/tex] hours to proof a chapter of the book.

Hope this helps!

Please help please help if you put a link I will report

Answers

Answer:

i think it is 13 per

pls mark branlyest

Step-by-step explanation:

Find the absolute maximum of (x^2-1)^3 in the interval [-1,2]

Answers

Let f(x) = (x ² - 1)³. Find the critical points of f in the interval [-1, 2]:

f '(x) = 3 (x ² - 1)² (2x) = 6x (x ² - 1)² = 0

6x = 0   or   (x ² - 1)² = 0

x = 0   or   x ² = 1

x = 0   or   x = 1   or   x = -1

Check the value of f at each of these critical points, as well as the endpoints of the given domain:

f (-1) = 0

f (0) = -1

f (1) = 0

f (2) = 27

So max{f(x) | -1 ≤ x ≤ 2} = 27.

solve the rational equation 8-6/x=5+12/x

Answers

I’m not really a math person but I got
x=6

x=6 is the answer to 8-6/x=5+12/x

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